Cataratas del Iguazu: a sweeping curtain of water on the border
Published on 09/09/2026 at 11:03 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS
Cataratas del Iguazu, known in English as Iguazu Falls, form an extensive series of waterfalls on the Iguazu River at the border between Brazil and Argentina. The cascades lie near Foz do Iguacu in Brazil and Puerto Iguazu in Argentina, where the river drops from a basalt plateau into a deep canyon in a broad arc of falling water.
A vast amphitheatre of water and rock
The defining impression of Cataratas del Iguazu is the scale of the waterfall system spread around a curved escarpment. The Iguazu River flows towards the Paraná River and, shortly before their confluence, plunges over a basalt edge in hundreds of separate cataracts distributed along a front of almost 2,700 m (8,860 ft). Numerous islands and ledges interrupt the line of the falls, turning the river into a chain of individual curtains that vary in width and height along the rim.a front of almost 2,700 metres
The waterfall system contains hundreds of distinct cascades, divided by wooded and rocky islands scattered along the edge over which the Iguazu River descends.275 different waterfalls The falls reach heights between roughly 60 m and 90 m (200–295 ft), creating a semicircular wall of water where the plateau breaks sharply. Below, the river continues through a narrow gorge, carrying spray and mist downstream towards the Paraná basin.the falls are 60 to 90 metres high
Devil’s Throat and the transnational parks
Among the many individual waterfalls at Cataratas del Iguazu, the sector known as Devil’s Throat stands out as a deep chasm where a large part of the river drops into a single horseshoe-shaped gorge. This feature receives approximately half of the Iguazu River’s flow, concentrating it into a narrow space framed by near-vertical cliffs.almost half of the water falls into the Devil’s Throat The chasm stretches for about 700 m (2,300 ft) and rises more than 80 m (262 ft) above the river, with the international boundary line between Brazil and Argentina crossing through this sector of the falls.a U-shaped chasm 700 metres long and 82 metres high
Cataratas del Iguazu form the central attraction of two adjacent protected areas: Iguazu National Park in Argentina and Iguaçu National Park in Brazil. Both parks preserve sections of subtropical Atlantic Forest along the river as well as the basalt plateau that carries it.Iguazu National Park in Misiones Province Iguazu National Park was inscribed as a UNESCO World Heritage Site in 1984 for its scenery and biodiversity, and its Brazilian counterpart Iguaçu National Park followed in 1986.World Heritage inscriptions in 1984 and 1986 The two parks together protect both the waterfall system and extensive tracts of forest, giving Cataratas del Iguazu a dual identity as a dramatic landscape feature and a conservation area.
Basalt plateau, subtropical forest and border towns
The physical setting of Cataratas del Iguazu is shaped by the Paraná Plateau, a broad highland of basaltic volcanic rock that formed during the Lower Cretaceous period. In this region, layered basalt flows create a relatively even surface, and the Iguazu River has carved its way across them, leaving a sudden break where the falls appear.fissural basaltic volcanic rocks dating to 125–115 Ma The result is a high, resistant rim with a canyon below, an arrangement that underlies the long line of separate waterfalls.
On either side of the river, dense subtropical forest surrounds Cataratas del Iguazu and extends through much of Iguazu and Iguaçu National Parks. The landscape combines river islands, cliffs and forested slopes, with walkways and viewpoints bringing travellers close to the edge of the basalt cap and to platforms near the canyon. The main urban gateways are Foz do Iguacu in the Brazilian state of Paraná and Puerto Iguazu in Argentina’s Misiones Province, both lying a short distance from the river and connected to the parks by road.near Foz do Iguacu and Puerto Iguazu
Visiting Cataratas del Iguazu: what travellers from Western Europe should know
- Cataratas del Iguazu lie on the Iguazu River at the border between Brazil’s Paraná State and Argentina’s Misiones Province, reached from Foz do Iguacu or Puerto Iguazu by road and park infrastructure.
- Walkways and viewpoints in both Iguazu National Park and Iguaçu National Park involve substantial walking on constructed paths, with sections of steps and elevated walkways above river channels and islands.
- The terrain combines high basalt cliffs, forested slopes and river islands, and viewpoints stand above the canyon where the river continues towards its confluence with the Paraná River.
- The official languages are Portuguese in Brazil and Spanish in Argentina, and the currencies are the Brazilian real and the Argentine peso.
- Entry requirements depend on your nationality; UK travellers can check the FCDO travel advice at gov.uk/foreign-travel-advice, Irish travellers the Department of Foreign Affairs at ireland.ie.
Searching for Cataratas del Iguazu on social platforms
These links open searches for Cataratas del Iguazu on each platform.
Frequently asked questions about Cataratas del Iguazu
Where are Cataratas del Iguazu located?
Cataratas del Iguazu are on the Iguazu River at the border between Argentina’s Misiones Province and Brazil’s Paraná State, near the towns of Foz do Iguacu and Puerto Iguazu.
What should travellers expect on a visit?
A visit centres on extensive views of a long escarpment lined with waterfalls, walkways above river channels and forest, and platforms overlooking sectors such as Devil’s Throat.
What makes Cataratas del Iguazu distinctive?
The falls combine a very long line of separate cataracts, a deep canyon and the transnational setting of two national parks, all framed by basalt bedrock and subtropical Atlantic Forest.
